public VaultConfigurationProvider(VaultOptions config)
        {
            _config = config;

            var vaultClientSettings = new VaultClientSettings(
                _config.Address,
                new AppRoleAuthMethodInfo(_config.Role,
                                          _config.Secret)
                );

            _client = new VaultClient(vaultClientSettings);
        }
 public VaultConfigurationSource(Action <VaultOptions> config)
 {
     _config = new VaultOptions();
     config.Invoke(_config);
 }